Br4nd0n
Member
- Location
- Indianapolis, IN, USA
A little info about my situation before I get to the question: I'm relocating equipment to a new building for a customer and have only been to their existing location once to do a quick "look over" of what I'm dealing with. The existing electrical is a nightmare and cannot be matched, so I nabbed some general info in order to hit the code book and install everything properly. I have several uncertainties, but in an effort to take it one step at a time and not get overwhelmed, I'll focus this first post on just one area.
If you're still with me, thanks!
Referring to article 430.42(C) - If you have a cord-and-plug-connected piece of equipment that is under 1 HP, code requires the plug and receptacle to be rated at no more than 15A. If it's a dedicated circuit with only 1 receptacle (to keep other loads off) am I correct that due to 210.21(B)(1), the circuit breaker would be limited to 15A? I see nothing in article 430 that amends article 210.
My concern here is the starting amperage of the motor. Let's say 120V/12A piece of equipment - does anybody know what the typical inrush current would be?
430.42(D) goes on to say the breaker shall have sufficient time delay. Is this the key here? I'm not familiar with varying time delay options in standard inverse time circuit breakers. Do these breakers generally have enough time delay? I know they provide instantaneous short-circuit protection. Any input here?
If you're still with me, thanks!
Referring to article 430.42(C) - If you have a cord-and-plug-connected piece of equipment that is under 1 HP, code requires the plug and receptacle to be rated at no more than 15A. If it's a dedicated circuit with only 1 receptacle (to keep other loads off) am I correct that due to 210.21(B)(1), the circuit breaker would be limited to 15A? I see nothing in article 430 that amends article 210.
My concern here is the starting amperage of the motor. Let's say 120V/12A piece of equipment - does anybody know what the typical inrush current would be?
430.42(D) goes on to say the breaker shall have sufficient time delay. Is this the key here? I'm not familiar with varying time delay options in standard inverse time circuit breakers. Do these breakers generally have enough time delay? I know they provide instantaneous short-circuit protection. Any input here?